Device and method for mechanical cleaning of grooves

Abstract

A device for mechanically cleaning a grooves used to hold a rotor or a stator winding of an electric machine includes an axially moveable device carrier and at least one cleaning tool connected to the device carrier and extending radially from the device carrier into the groove. In addition, a corresponding method includes the steps of radially moving at least one cleaning tool connected to a device carrier so as to mechanically remove impurities on a wall section of the groove, axial advancing of the device carrier in a manner adapted to the radial movement of the at least one cleaning tool, and setting the dimensional tolerance range for the groove by adjusting the cleaning tool. The device and the method are suitable for cleaning grooves into which a new winding is to be installed in an existing laminated body, for example, in the case of the retrofitting of generators.

1 . A device for cleaning a groove for holding a winding of one of a rotor and a stator, the winding having an axis, the device comprising: 
 an axially moveable device carrier; and    at least one cleaning tool connected to the device carrier and extending radially from the device carrier into the groove.    
   
   
       2 . The device as recited in  claim 1 , further comprising a lifting cylinder configured to move the at least one cleaning tool up and down in the groove.  
   
   
       3 . The device as recited in  claim 1 , wherein the at least one cleaning tool includes a plurality of cleaning tools configured to clean a first wall of the groove in parallel.  
   
   
       4 . The device as recited in  claim 1 , wherein the at least one cleaning tool includes a plurality of cleaning tools configured to clean a first and a second wall of the groove in parallel, wherein the first and second walls are disposed across from each other.  
   
   
       5 . The device as recited in  claim 1 , further comprising a guide device disposed axially with respect to the groove, the device carrier being slideable with respect to the guide device in the axial direction.  
   
   
       6 . The device as recited in  claim 5 , wherein the guide device includes at least one rail.  
   
   
       7 . The device as recited in  claim 1 , further comprising a setting device configured to adjust a stroke and a cutting depth of the at least one cleaning tool.  
   
   
       8 . The device as recited in  claim 1 , further comprising a setting device configured to set a rate of advance of the at least one cleaning tool as a function of at least one of a stroke and a rotation of the at least one cleaning tool.  
   
   
       9 - 11 . (canceled)